//
// IncrementConnection
//
// Call to indicate that we now are starting a new
// connection within this service point
//
internal void IncrementConnection()
{
GlobalLog.Print("IncrementConnection #" + m_CurrentConnections.ToString() + " #" + this.GetHashCode().ToString());
// we need these to be atomic operations
lock (this) {
m_CurrentConnections++;
if (m_CurrentConnections == 1)
{
ServicePointManager.RemoveIdleServicePoint(this);
}
}
}
// Methods
internal ServicePoint GetServicePoint()
{
lock (locker) {
if (hostChanged || servicePoint == null)
{
servicePoint = ServicePointManager.FindServicePoint(actualUri, proxy);
hostChanged = false;
}
}
return(servicePoint);
}
/// <summary>Finds an existing <see cref="T:System.Net.ServicePoint" /> object or creates a new <see cref="T:System.Net.ServicePoint" /> object to manage communications with the specified <see cref="T:System.Uri" /> object.</summary>
/// <returns>The <see cref="T:System.Net.ServicePoint" /> object that manages communications for the request.</returns>
/// <param name="address">A <see cref="T:System.Uri" /> object that contains the address of the Internet resource to contact. </param>
/// <param name="proxy">The proxy data for this request. </param>
/// <exception cref="T:System.ArgumentNullException">
/// <paramref name="address" /> is null. </exception>
/// <exception cref="T:System.InvalidOperationException">The maximum number of <see cref="T:System.Net.ServicePoint" /> objects defined in <see cref="P:System.Net.ServicePointManager.MaxServicePoints" /> has been reached. </exception>
/// <PermissionSet>
/// <IPermission class="System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
/// <IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Flags="ControlEvidence" />
/// </PermissionSet>
public static ServicePoint FindServicePoint(System.Uri address, IWebProxy proxy)
{
if (address == null)
{
throw new ArgumentNullException("address");
}
ServicePointManager.RecycleServicePoints();
bool usesProxy = false;
bool flag = false;
if (proxy != null && !proxy.IsBypassed(address))
{
usesProxy = true;
bool flag2 = address.Scheme == "https";
address = proxy.GetProxy(address);
if (address.Scheme != "http" && !flag2)
{
throw new NotSupportedException("Proxy scheme not supported.");
}
if (flag2 && address.Scheme == "http")
{
flag = true;
}
}
address = new System.Uri(address.Scheme + "://" + address.Authority);
ServicePoint servicePoint = null;
System.Collections.Specialized.HybridDictionary obj = ServicePointManager.servicePoints;
lock (obj)
{
ServicePointManager.SPKey key = new ServicePointManager.SPKey(address, flag);
servicePoint = (ServicePointManager.servicePoints[key] as ServicePoint);
if (servicePoint != null)
{
return(servicePoint);
}
if (ServicePointManager.maxServicePoints > 0 && ServicePointManager.servicePoints.Count >= ServicePointManager.maxServicePoints)
{
throw new InvalidOperationException("maximum number of service points reached");
}
string text = address.ToString();
int connectionLimit = ServicePointManager.defaultConnectionLimit;
servicePoint = new ServicePoint(address, connectionLimit, ServicePointManager.maxServicePointIdleTime);
servicePoint.Expect100Continue = ServicePointManager.expectContinue;
servicePoint.UseNagleAlgorithm = ServicePointManager.useNagle;
servicePoint.UsesProxy = usesProxy;
servicePoint.UseConnect = flag;
ServicePointManager.servicePoints.Add(key, servicePoint);
}
return(servicePoint);
}
static HttpClient()
{
#if !Mono
//返回域名多IP地址
ServicePointManager.EnableDnsRoundRobin = true;
#endif
ServicePointManager.DefaultConnectionLimit = ushort.MaxValue;
ServicePointManager.MaxServicePoints = 0;
ServicePointManager.MaxServicePointIdleTime = 100000;
checked
{
int keep = (int)xHttpHandler.KeepAliveInterval;
ServicePointManager.SetTcpKeepAlive(true, keep, keep);
}
ServicePointManager.CheckCertificateRevocationList = true;
ServicePointManager.ServerCertificateValidationCallback = new System.Net.Security.RemoteCertificateValidationCallback(CheckValidationResult);
}
//
// DecrementConnection
//
// Call to indicate that we now are removing
// a connection within this connection group
//
internal void DecrementConnection()
{
GlobalLog.Print("DecrementConnection #" + m_CurrentConnections.ToString() + " #" + this.GetHashCode().ToString());
// we need these to be atomic operations
lock (this) {
m_CurrentConnections--;
if (m_CurrentConnections == 0)
{
MarkIdle();
ServicePointManager.AddIdleServicePoint(this);
}
else if (m_CurrentConnections < 0)
{
m_CurrentConnections = 0;
}
}
}
/// <summary>Finds an existing <see cref="T:System.Net.ServicePoint" /> object or creates a new <see cref="T:System.Net.ServicePoint" /> object to manage communications with the specified Uniform Resource Identifier (URI).</summary>
/// <returns>The <see cref="T:System.Net.ServicePoint" /> object that manages communications for the request.</returns>
/// <param name="uriString">The URI of the Internet resource to be contacted. </param>
/// <param name="proxy">The proxy data for this request. </param>
/// <exception cref="T:System.UriFormatException">The URI specified in <paramref name="uriString" /> is invalid. </exception>
/// <exception cref="T:System.InvalidOperationException">The maximum number of <see cref="T:System.Net.ServicePoint" /> objects defined in <see cref="P:System.Net.ServicePointManager.MaxServicePoints" /> has been reached. </exception>
/// <PermissionSet>
/// <IPermission class="System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
/// <IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Flags="ControlEvidence" />
/// </PermissionSet>
public static ServicePoint FindServicePoint(string uriString, IWebProxy proxy)
{
return(ServicePointManager.FindServicePoint(new System.Uri(uriString), proxy));
}
/// <summary>Finds an existing <see cref="T:System.Net.ServicePoint" /> object or creates a new <see cref="T:System.Net.ServicePoint" /> object to manage communications with the specified <see cref="T:System.Uri" /> object.</summary>
/// <returns>The <see cref="T:System.Net.ServicePoint" /> object that manages communications for the request.</returns>
/// <param name="address">The <see cref="T:System.Uri" /> object of the Internet resource to contact. </param>
/// <exception cref="T:System.ArgumentNullException">
/// <paramref name="address" /> is null. </exception>
/// <exception cref="T:System.InvalidOperationException">The maximum number of <see cref="T:System.Net.ServicePoint" /> objects defined in <see cref="P:System.Net.ServicePointManager.MaxServicePoints" /> has been reached. </exception>
/// <PermissionSet>
/// <IPermission class="System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
/// <IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Flags="ControlEvidence" />
/// </PermissionSet>
public static ServicePoint FindServicePoint(System.Uri address)
{
return(ServicePointManager.FindServicePoint(address, GlobalProxySelection.Select));
}